I am completely new to CMS and Word Press, though I have heard of it a lot. I recently downloaded and installed Webmatrix2 and there, in the App Gallery, I clicked Wordpress to install Wordpress. It asked for a name and then checked if I have Mysql installed, I had. Then I enetered the password for root, and it gave me this following error:

I am entering the only password that I used while setting up MySQL. I also tried installing Joomla, with MS SQL Server and MYSQL Server, same error! Please Help.